Formalize the mechanism for storing mapped (non-filesystem) filenames
in the filenames array. These are not compared against input or output
files for overwrite checks.
Add the infrastructure for comparing more than one input filename
(future proofing.)
Move the Makefile dependency target name to the filenames system.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Adds an option to remap file prefixes in output object files. This is
analogous to the "-fdebug-prefix-map" option in GCC, and allows files to
be built in a reproducible manner regardless of the build directory.
[ hpa: this still needs to be documented in doc/running.src. ]
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
- Register the map file with the filename system.
- Check to see if the mapfile is clobbering the input.
- Remove the map file if the output file is also removed.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Replace the direct setting of variables for input and output variables
with accessors. This allows for properly tracking the lifetimes of the
data and allows for things like checking of the overwrite of the
primary input file to be centralized.
It isn't possible *in the general case* to check for overwrite of
*any* of the input files, although in the particularly important case
of the assembler proper it ought to be possible to do a bit better:
it should be able to guard for overwrites of non-primary input files
except for the error file or the list file if and only if -Lp is used.
That is, however, a latter project.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
